From 84fbbe21894bb9be8e16df408cbfbb9466fe396d Mon Sep 17 00:00:00 2001 From: "Matthew Wilcox (Oracle)" Date: Sat, 29 Jan 2022 16:16:54 -0500 Subject: mm/rmap: Constify the rmap_walk_control argument The rmap walking functions do not modify the rmap_walk_control, and page_idle_clear_pte_refs() takes advantage of that to move construction of the rmap_walk_control to compile time. This lets us remove an unclean cast. Signed-off-by: Matthew Wilcox (Oracle) --- mm/ksm.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) (limited to 'mm/ksm.c') diff --git a/mm/ksm.c b/mm/ksm.c index dd737f925c04..eed2ff25a2fb 100644 --- a/mm/ksm.c +++ b/mm/ksm.c @@ -2588,7 +2588,7 @@ struct page *ksm_might_need_to_copy(struct page *page, return new_page; } -void rmap_walk_ksm(struct folio *folio, struct rmap_walk_control *rwc) +void rmap_walk_ksm(struct folio *folio, const struct rmap_walk_control *rwc) { struct stable_node *stable_node; struct rmap_item *rmap_item; -- cgit